I don't see why Speedball would return from MK 2099 (the reality he is in, created by Robert Kirkman and seperate from Marvel 2099 from the 90's). He's got a more important role there. Not even Squirrel Girl could get him to return. Plus, someone at Marvel would actually have to give two ****'s about "classic Speedball" and the amount of writers who do amounts to three; Kirkman, Slott, and FabNic. I doubt either see it as a priority or have been asked to do so by editors.
That and it would be tricky to explain how if he was a Skrull, that Speedball was able to hold his form even when unconscious and near death.
Oh, and to
JewishHobbit; Ben Reilly is dead. His corpse turned to DUST immediately after he was killed by Norman Osborn. That entire storyline and all allusions from it is considered "ixnay" by the Marvel Establishment except to crack a joke, even when they might have made sense, like discussing a miscarried baby or having Doc Ock visit Stunner's comatose form or something. Much like no one at Marvel mentions the "Skrull Marriage" story in FF in exchange for making Johnny an immature ladies man (even though he remained faithful to "Alicia" for as long as they were married). I am curious how SECRET INVASION will go along without any writer having the cajones to mention THAT story. Because that would mean admitting Johnny Storm could commit to a serious relationship, and then they couldn't use his ladies man schtick the same. GASP!!
The Clone Saga is dead, no one liked it, and even if some did, Marvel isn't nuts enough to invite their most embarassing Marvel storyline ever back into the fold. Hell, they've just gotten over the demonic annulment saga. Move on. Uncle Ben will come back, and HAS (if you count alternate reality versions) before Scarlet Spider. The Internet is full of rare Clone fans who want a bone, but Marvel is 1 billion percent interested in never evoking that storyline or any detail from it again. I say this an intervention.